Here's an interesting one:
crash % whois 166.128.0.0
GTE Telecommunications Products and Services (NETBLK-CDPD-B)
245 Perimeter Center Parkway
Atlanta, GA 30346
Netname: NETBLK-CDPD-B
Netblock: 166.128.0.0 - 166.255.0.0
Coordinator:
Brenner, Robert (RB30) ROBERT.W.BRENNER@GTE.SPRINT.COM
(404) 391-8450
Domain System inverse mapping provided by:
NIC.CDPD.NET 198.41.0.20
NETMAN1.NETSOL.COM 192.153.247.11
Record last updated on 18-May-95.
The InterNIC Registration Services Host contains ONLY Internet Information
(Networks, ASN's, Domains, and POC's).
Please use the whois server at nic.ddn.mil for MILNET Information.
Scott